<span>PAPER MONEY.
As wealth increases, owning a large number of gold and silver coins becomes a security problem. As coins are portable, they are also easy to steal. The next step in the development of money was for people to leave their surplus gold and silver coins with a goldsmith who had a reputation for honesty and who operated premises which were secure. The goldsmith would give a receipt, which would entitle the owner to withdraw their coins when they needed them. This was the beginning of paper money.</span>
Two quarters .50, Two dimes .10, One nickel .05, and Two pennies .02.
.25*2=.50+.10=.60+.10=.70+.5+.2=.77
Step-by-step explanation:
- 4x2 - 80x - 400
- 4x2 - 40x - 40x - 400
-4x( x + 10) - 40(x + 10)
(x + 10) and ( - 4x - 40) are the factors
Answer:
B. x = -1 or x = 4 1/3.
Step-by-step explanation:
2|3x -5| -8 =8
2|3x -5| = 16
|3x -5| = 8
The expression in the vertical lines can be positive or negative so we have 2 equations:
3x - 5 = 8 and 3x - 5 = -8
3x - 5 = 8
3x = 13
<u>x = 13/3 or 4 1/3</u>
3x - 5 = -8
3x = -8 + 5 = -3
x = -1.
Answer:
White paint and Red paint = 8 cups and the Whole Batch= 20 cups
Step-by-step explanation:
Ok the white paint is 40% and the blue paint is 20%. Add these together and you get 60%, which means that the other 40% is red paint.
White paint= 40%
Blue paint = 20% (4 cups)
Red paint = 40%
If we look at the blue paint, multiplying that by 2 will make it 40%. This means that the While paint and Red paint both equal 8 cups.
White paint = 8 cups
Blue paint = 4 cups
Red paint = 8 cups.
This comes out to 20 cups of paint. Check with a calculator just to make sure. Hope this helps!
